Unload submodules before unload/reloading Bambot.
Build incremented: 0.0.12 => 0.0.13.
Centralize random choices.
Refactored/revised reload messages.
h4x: Allow targetting specific bambot instances.

Mostly useful for testing a debug version without also interacting with
the production version in the same channel (sure, I guess a private
message would suffice as well). This hasn't been tested yet, BUT HOW CAN
IT POSSIBLY FAIL?! That's what I... I thought so.

/duck for velocipator attack.
Build incremented: 0.0.13 => 0.0.14.